Sleeping pills and Alzheimer

Two seemingly conflicting reports about sleeping pills and Alzheimer:

1. Alzheimer’s Disease Protein Levels Reduced by Sleeping Pill https://www.insideprecisionmedicine.com/topics/patient-care/neurological-disorders/alzheimers-disease-protein-levels-reduced-by-sleeping-pill/

2. Sleeping Pills May Increase Dementia Risk: Study https://www.webmd.com/sleep-disorders/news/20230303/cm/sleeping-pills-may-increase-dementia-risk-study

How do we reconcile these two reports? The key here is to make a distinction among these drugs. The good one, in the first article, is suvorexant, which according to a Google search, is sold under the brand name Belsomra. The bad ones, in the second article, are flurazepam (brand name Dalmane), triazolam (Halcion), temazepam (Restoril), trazodone (Desyrel and Oleptro), and zolpidem (Ambien). So if we ever need a sleeping pill, choose Belsomra and avoid the ones in the latter list, in which the first three here are benzodiazepine (benzo for short). There are more research articles confirming the association of benzodiazepine with dementia than otherwise. To be safe, avoid it.

But why bother with sleeping pills? If you do need one, why not take melatonin, which is naturally secreted in your body and has no truly harmful effect?